CN220125290U

CN220125290U - face mask

Info

Publication number: CN220125290U
Application number: CN202221673175.5U
Authority: CN
Inventors: 漆思静
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-12-05
Anticipated expiration: 2032-06-30

Abstract

The embodiment of the utility model provides a mask. The mask comprises a mask body and an adjusting device, wherein the adjusting device is connected to one side of the mask body; the adjusting device comprises a coil spring, a head band, a first shell and a second shell; the first shell and the second shell are connected to form a containing cavity, the coil spring and part of the headband are positioned in the containing cavity, the first shell is connected to one side of the mask body, the headband is wound on the coil spring, and one end of the headband is connected with the coil spring; the first shell and/or the second shell are/is provided with a notch, the other end of the headband extends out of the notch, and the other end of the headband is connected to the other side of the mask body; under the condition that the headband between the notch and the other side of the mask body is stressed, one end of the headband is driven by the coil spring to move, so that the length of the headband between the notch and the other side of the mask body is changed.

Description

Face mask

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a mask.

Background

The mask is an important link in a noninvasive respiratory therapy mode, the two ends of the mask are connected with the head bands, and the head bands at the two ends are connected through operation, so that the mask can be worn.

In the related art, a buckle is arranged on one of the head bands at two ends of the mask, in the wearing process, a user needs to hold the one head band by one hand, meanwhile, the mask is fixed by using the elbow and other parts, the other head band is held by the other hand, the other head band is operated to be connected with the buckle, and the other head band is operated to be at different positions and buckled to be connected with the buckle, so that the length of the head band is adjusted.

Therefore, in the related art, the user needs to operate both hands simultaneously to adjust the length of the headband, and the wearing process of the mask is complicated.

Disclosure of Invention

The embodiment of the utility model provides a mask to solve the problem that the wearing process of the mask in the related art is complex, and a user needs to operate two hands simultaneously to adjust the length of a headband.

In order to solve the technical problems, the utility model is realized as follows:

the embodiment of the utility model provides a mask, which comprises a mask body and an adjusting device, wherein the adjusting device is connected to one side of the mask body;

the adjusting device comprises a coil spring, a head band, a first shell and a second shell; the first shell and the second shell are connected to form a containing cavity, the coil spring and part of the headband are positioned in the containing cavity, the first shell is connected to one side of the mask body, the headband is wound on the coil spring, and one end of the headband is connected with the coil spring;

the first shell and/or the second shell are/is provided with a notch, the other end of the headband extends out of the notch, and the other end of the headband is connected to the other side of the mask body;

under the condition that the headband between the notch and the other side of the mask body is stressed, one end of the headband is driven by the coil spring to move, so that the length of the headband between the notch and the other side of the mask body is changed.

Optionally, the adjusting device further comprises a coil spring plate and a brake piece;

the coil spring disc is positioned in the accommodating cavity, the coil spring disc is provided with a first surface and a second surface which are opposite, the first surface is provided with a mounting column, the second surface is provided with a rotating shaft, the coil spring is sleeved on the mounting column, the mounting column is rotationally connected with the inner wall of the first shell, and the rotating shaft is rotationally connected with the inner wall of the second shell;

the braking piece is arranged on the first shell or the second shell, part of the braking piece is positioned in the accommodating cavity, and the braking piece is used for being clamped with the coil spring disc so as to stop the rotation of the coil spring disc.

Optionally, a clamping structure is disposed on the wind spring disc along a circumferential direction of the wind spring disc, and the brake member is used for being clamped with the clamping structure so as to block rotation of the wind spring disc.

Optionally, a plurality of clamping teeth are arranged on the wind spring disc along the circumferential direction of the wind spring disc, the clamping teeth form the clamping structure, and the braking piece is used for being clamped with the clamping teeth so as to block the rotation of the wind spring disc;

or, a plurality of clamping grooves are formed in the coil spring disc along the circumferential direction of the coil spring disc, the clamping grooves form the clamping structure, and the braking piece is used for being embedded in one clamping groove so as to block the rotation of the coil spring disc.

Optionally, the brake piece is provided with spacing tooth, spacing tooth is used for joint tooth joint, perhaps, be provided with spacing boss on the brake piece, spacing boss is used for inlaying and locates in the joint groove.

Optionally, the brake piece includes a first brake button, a first connecting rod and a first brake rod, the first brake button is connected with the first connecting rod, and the first connecting rod is connected with one end of the first brake rod;

the first casing or be provided with the mounting groove on the second casing, just the mounting groove with hold the chamber and switch on, the head rod inlays and locates in the mounting groove, just the head rod is relative the mounting groove slidable, first brake button expose in the first casing or the second casing, first brake lever is located hold the chamber, first brake button is used for driving the head rod slides in the mounting groove, so that the other end of first brake lever with joint structure joint.

Optionally, a limiting hole is arranged at a position, close to one end of the mounting groove, and the limiting hole is communicated with the mounting groove;

when the first brake key is positioned at a first position, the first connecting rod is positioned in the limiting hole, and the limiting hole limits the first connecting rod so that the first brake rod locks the coil spring plate; and under the condition that the first brake key is positioned at the second position, the first connecting rod is positioned in the mounting groove, so that the first brake rod is unlocked to the coil spring disc.

Optionally, the brake piece includes second brake button, second connecting rod, elastic component and second brake lever, be provided with the mounting hole on the second casing, just be provided with fixed knot on the inner wall of second casing and construct, the elastic component is located hold the chamber, second brake button with the one end of second connecting rod is connected, second brake button is located hold the outside space in chamber, be provided with on the second connecting rod and block the boss, the second connecting rod wears to locate mounting hole and the elastic component, the one end of elastic component with fixed knot constructs the butt, the other end of elastic component with block the boss butt, the one end of brake lever be connected in block the boss, the other end of second brake lever is located the outside space of elastic component, be provided with elastic arch on the second brake button, still be provided with the recess on the second casing;

when the second brake key is at the first position, the protrusion is embedded into the groove, the elastic piece is in a compressed state, and the other end of the second brake rod is abutted with the clamping structure so as to lock the coil spring disc; and under the condition that the second brake key is positioned at a second position, the protrusion is separated from the groove, the elastic piece is positioned at an initial state, and the other end of the second brake lever is separated from the clamping structure so as to release the locking of the coil spring disc.

Optionally, a clamping strip is arranged on the coil spring, a through hole is arranged at one end of the headband, and the clamping strip is arranged through the through hole, so that the coil spring is connected with one end of the headband.

Optionally, the adjusting device further includes a connecting band, one end of the connecting band is connected with the first housing, and the other end of the connecting band is connected with the mask body.

In an embodiment of the utility model, the mask comprises a mask body and an adjusting device, wherein the adjusting device comprises a coil spring, a head band, a first shell and a second shell, the first shell and the second shell are connected to form a containing cavity, the coil spring and a part of the head band are positioned in the containing cavity, the head band is wound on the coil spring, one end of the head band is connected with the coil spring, a notch is formed in the first shell and/or the second shell, the other end of the head band extends out of the notch, and therefore the coil spring can drive one end of the head band to move in the containing cavity, and the length of the coil spring positioned outside the containing cavity is changed. Because adjusting device passes through first casing and connects in the one side of face guard body, and the one end of bandeau is located the holding chamber between first casing and the second casing, and the other end of bandeau stretches out from holding the chamber, and is connected in the opposite side of face guard body, consequently, the both ends of bandeau are connected respectively in the both sides of face guard body, and the one end of bandeau can move in holding the chamber under the effect of coil spring to can make the length change of bandeau between breach to the opposite side of face guard body, in order to realize the regulation of bandeau length.

When the length of bandeau is adjusted to the face of wearing the face guard, the user can place the face at first, the user can stimulate the bandeau, make the one end of bandeau move, and drive the coil spring and move in holding the chamber, the one end of bandeau is to the direction motion that is close to the inner wall of first casing, the inner wall of second casing this moment, make the bandeau length increase between breach to the opposite side of face guard body, when the length of bandeau between the opposite side of breach and face guard body is enough to make user's head pass through, later the user loosens the hand, the coil spring moves to the direction that keeps away from the inner wall of first casing and the inner wall of second casing under the elasticity effect of self this moment, and drive the one end of bandeau to holding the inside motion in chamber, make the bandeau length that is located between breach to the face guard body opposite side reduce, the bandeau can shrink automatically, make bandeau and user's head laminating, wearing of face guard can be accomplished, the wearing of face guard has been avoided the user to need two hand cooperation to adjust length to accomplish. That is, when the mask provided by the embodiment of the utility model is worn, a user only needs to pull the headband, so that the length of the headband between the notch and the other side of the mask body is increased, the user releases hands after the mask is placed on the face, and the adjusting device can drive the headband to move, so that the headband is contracted and attached to the head of the user, and the mask is worn. The adjusting mode of bandeau length is simple, has avoided the simultaneous operation of user's two hands for the wearing of face guard is comparatively simple.

Drawings

FIG. 1 shows a schematic view of a mask provided in accordance with an embodiment of the present utility model;

FIG. 2 shows an exploded view of a mask provided in accordance with an embodiment of the present utility model;

FIG. 3 illustrates a schematic view of a coil spring connected to a headband in accordance with an embodiment of the present utility model;

FIG. 4 illustrates a cross-sectional view of a coil spring coupled to a headband in accordance with an embodiment of the present utility model;

FIG. 5 shows a cross-sectional view of an adjustment device according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a brake member according to an embodiment of the present utility model;

FIG. 7 is a schematic view of another brake member according to an embodiment of the present utility model;

FIG. 8 illustrates a schematic view of a brake locking spring plate provided in accordance with an embodiment of the present utility model;

FIG. 9 is a schematic illustration of a brake releasing a locking of a coiler plate according to an embodiment of the present utility model.

Reference numerals:

100: a face mask; 10: a mask body; 20: an adjusting device; 21: a coil spring; 22: a headband: 23: a first housing: 24: a second housing; 25: a coil spring plate; 26: a brake member; 27: a connecting belt; 11: a hook; 28: a notch; 211: a clamping strip; 221: a through hole; 251: a mounting column; 252: a rotating shaft; 261: a first brake button; 262: a first connecting rod; 263: a first brake lever; 264: a second brake button; 265: a second connecting rod; 266: an elastic member; 267: a second brake lever; 268, a step of; a protrusion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 9, the mask 100 includes a mask body 10 and an adjusting device 20, the adjusting device 20 being connected to one side of the mask body 10; the adjusting device 20 includes a coil spring 21, a headband 22, a first housing 23, and a second housing 24; the first shell 23 and the second shell 24 are connected to form a containing cavity, the coil spring 21 and part of the headband 22 are positioned in the containing cavity, the first shell 23 is connected to one side of the mask body 10, the headband 22 is wound on the coil spring 21, and one end of the headband 22 is connected with the coil spring 21; the first shell 23 and/or the second shell 24 are/is provided with a notch 28, the other end of the headband 22 extends out of the notch 28, and the other end of the headband 22 is connected to the other side of the mask body 10; in the event that the headgear 22 is stressed between the notch 28 to the other side of the mask body 10, the coil spring 21 moves one end of the headgear 22 such that the length of the headgear 22 between the notch 28 to the other side of the mask body 10 changes.

In the embodiment of the present utility model, the mask 100 includes the mask body 10 and the adjusting device 20, the adjusting device 20 includes a coil spring 21, a headband 22, a first housing 23 and a second housing 24, the first housing 23 and the second housing 24 are connected to form a receiving cavity, the coil spring 21 and a part of the headband 22 are located in the receiving cavity, the headband 22 is wound around the coil spring 21, one end of the headband 22 is connected to the coil spring 21, a notch 28 is provided on the first housing 23 and/or the second housing 24, and the other end of the headband 22 extends from the notch 28, so that the coil spring 21 can drive one end of the headband 22 to move in the receiving cavity, so that the length of the coil spring 21 located outside the receiving cavity is changed. Since the adjusting device 20 is connected to one side of the mask body 10 through the first housing 23, one end of the headband 22 is located in the accommodating cavity between the first housing 23 and the second housing 24, and the other end of the headband 22 extends out of the accommodating cavity and is connected to the other side of the mask body 10, therefore, both ends of the headband 22 are respectively connected to both sides of the mask body 10, and one end of the headband 22 can move in the accommodating cavity under the action of the coil spring 21, so that the length of the headband 22 from the notch 28 to the other side of the mask body 10 can be changed, thereby realizing the adjustment of the length of the headband 22.

When the mask 100 is worn to adjust the length of the headband 22, a user can firstly put the mask 100 on the face, the user can pull the headband 22 to enable one end of the headband 22 to move and drive the coil spring 21 to move in the accommodating cavity, at the moment, one end of the headband 22 moves towards the direction close to the inner wall of the first shell 23 and the inner wall of the second shell 24, the length of the headband 22 between the notch 28 and the other side of the mask body 10 is increased, when the length of the headband 22 between the notch 28 and the other side of the mask body 10 is enough to enable the head of the user to pass through, the user releases hands, at the moment, the coil spring 21 moves towards the direction far away from the inner wall of the first shell 23 and the inner wall of the second shell 24 under the action of the elasticity of the user, and drives one end of the headband 22 to move towards the accommodating cavity, so that the length of the headband 22 between the notch 28 and the other side of the mask body 10 is reduced, namely, the headband 22 can automatically shrink, the headband 22 is attached to the head of the user, and the wearing of the mask 100 can be completed, and the fact that the user needs two hands to be matched to adjust the length of the headband 22 to be worn is avoided. That is, when the mask 100 provided by the embodiment of the utility model is worn, the user only needs to pull the headband 22, so that the length of the headband 22 between the notch 28 and the other side of the mask body 10 is increased, the user releases his hands after the mask 100 is placed on the face, and the adjusting device 20 can drive the headband 22 to move, so that the headband 22 is contracted and attached to the head of the user, thereby completing the wearing of the mask 100. The length of the headband 22 is simple to adjust, avoiding simultaneous operation of the user's hands, making the mask 100 simpler to wear.

In addition, in some embodiments, as shown in fig. 2 and 5, the adjustment device 20 may further include a coil spring plate 25 and a brake 26; the spring coiling disc 25 is positioned in the accommodating cavity, the spring coiling disc 25 is provided with a first surface and a second surface which are opposite, the first surface is provided with a mounting column 251, the second surface is provided with a rotating shaft 252, the spring coiling 21 is sleeved on the mounting column 251, the mounting column 251 is rotationally connected with the inner wall of the first shell 23, and the rotating shaft 252 is rotationally connected with the inner wall of the second shell 24; the braking member 26 is mounted on the first housing 23 or the second housing 24, and a part of the braking member 26 is located in the accommodating cavity, and the braking member 26 is used for being clamped with the spring coiling disc 25 so as to stop the rotation of the spring coiling disc 25.

The adjusting device 20 comprises a coil spring plate 25 and a braking member 26, wherein a mounting column 251 is arranged on a first surface of the coil spring plate 25, and the coil spring 21 is sleeved with the mounting column 251, so that the coil spring 21 can drive the coil spring plate 25 to rotate through the mounting column 251. The second surface is also provided with a rotating shaft 252, the mounting column 251 is rotationally connected with the inner wall of the first shell 23, and the rotating shaft 252 is rotationally connected with the inner wall of the second shell 24, so that the connection between the spring coiling disc 25 and the first shell 23 and the second shell 24 can be realized, and the spring coiling disc 25 can rotate relative to the first shell 23 and the second shell 24. The second casing 24 or the first casing 23 is provided with a braking member 26, and the braking member 26 is operated to enable the braking member 26 to be clamped with the spring coiling disc 25, so that the braking member 26 can block the spring coiling disc 25, the spring coiling disc 25 cannot continue to rotate, at the moment, the spring coiling 21 stops rotating, and therefore the spring coiling disc 25 is locked, one end of the headband 22 stops moving, and the headband 22 is prevented from stretching.

It should be noted that, the coil spring 21 and the mounting post 251 cannot rotate relatively, so that the coil spring 21 can drive the coil spring plate 25 to rotate. In the embodiment of the present utility model, the coil spring 21 may be connected to the mounting post 251 by an interference connection, so that the coil spring 21 and the mounting post 251 cannot rotate relatively, or the coil spring 21 and the mounting post 251 may be connected by other manners, for example, the mounting post 251 and the coil spring 21 are connected by a snap, or the mounting post 251 and the coil spring 21 may be connected by gluing, welding, etc. The connection relationship between the mounting post 251 and the coil spring 21 is not particularly limited in the embodiment of the present utility model.

Additionally, in some embodiments, as shown in fig. 8 and 9, a locking structure may be provided on the coiler 25 along the circumferential direction of the coiler 25, and a stopper 26 is used to lock with the locking structure to block the rotation of the coiler 25.

The spring coiling disk 25 is provided with the joint structure along its circumference direction, and when spring coiling 21 drove spring coiling disk 25 and rotate, brake piece 26 and joint structure joint can block spring coiling disk 25 for spring coiling disk 25 can not continue to rotate, and then spring coiling 21 then stops rotating, makes the one end of bandeau 22 stop motion, thereby locking spring coiling disk 25, avoid bandeau 22 to stretch out and draw back.

Additionally, in some embodiments, the coiler plate 25 may be provided with a plurality of engaging teeth along the circumferential direction of the coiler plate 25, where the plurality of engaging teeth form an engaging structure, and the braking member 26 is configured to engage with the engaging teeth to block rotation of the coiler plate 25; or, a plurality of clamping grooves may be disposed on the wind spring plate 25 along the circumferential direction of the wind spring plate 25, where the clamping grooves form a clamping structure, and the braking member 26 is used to be embedded in one clamping groove to block the rotation of the wind spring plate 25. Correspondingly, the braking piece 26 can be provided with a limiting tooth, the limiting tooth is used for clamping the clamping tooth, or the braking piece 26 is provided with a limiting boss, and the limiting boss is used for being embedded in the clamping groove.

In the embodiment of the present utility model, the clamping structure and the braking member 26 may have different structures, specifically, the following several examples are described as follows:

mode one: as shown in fig. 8 and 9, a plurality of clamping teeth are arranged on the spring coiling disk 25 along the circumferential direction of the spring coiling disk 25, limiting teeth are arranged on the brake piece 26, the limiting teeth and the clamping teeth can be clamped by operating the brake piece 26, the rotation of the spring coiling disk 25 can be blocked by the limiting teeth, the spring coiling disk 25 cannot continue to rotate, at the moment, the spring coiling disk 21 stops rotating, and therefore the spring coiling disk 25 is locked, one end of the headband 22 stops moving, and the headband 22 is prevented from telescoping.

Mode two: the coil spring plate 25 is provided with a plurality of clamping grooves along the circumferential direction of the coil spring plate 25, the brake piece 26 is provided with a limiting boss, and the brake piece 26 is operated to enable the limiting piece to be located in the clamping grooves, so that the limiting boss can block the rotation of the coil spring plate 25, the coil spring plate 25 cannot continue to rotate, at the moment, the coil spring 21 stops rotating, the coil spring plate 25 is locked, one end of the headband 22 stops moving, and the headband 22 is prevented from telescoping.

In addition, in some embodiments, as shown in fig. 6, the braking member 26 may include a first braking button 261, a first connecting rod 262 and a first braking rod 263, wherein the first braking button 261 is connected with the first connecting rod 262, and the first connecting rod 262 is connected with one end of the first braking rod 263; the first casing 23 or the second casing 24 is provided with a mounting groove, the mounting groove is communicated with the accommodating cavity, the first connecting rod 262 is embedded in the mounting groove, the first connecting rod 262 is slidable relative to the mounting groove, the first brake key 261 is exposed out of the first casing 23 or the second casing 24, the first brake rod 263 is located in the accommodating cavity, and the first brake key 261 is used for driving the first connecting rod 262 to slide in the mounting groove so that the other end of the first brake rod 263 is clamped with the clamping structure.

The braking member 26 includes a first braking button 261, a first connecting rod 262 and a first braking rod 263, wherein the first braking button 261 is connected with the first connecting rod 262, the first connecting rod 262 is connected with one end of the first braking rod 263, and the other end of the first braking rod 263 is used for being clamped with the clamping structure. The first casing 23 or the second casing 24 is provided with a mounting groove, the mounting groove is communicated with the accommodating cavity, the first connecting rod 262 is embedded in the mounting groove, and the first brake key 261 is exposed out of the second casing 24, so that a user can operate the first brake key 261, the first brake key 261 can drive the first connecting rod 262 to slide in the mounting groove, and then the first brake rod 263 moves towards a direction close to the clamping structure, or the first brake rod 263 moves towards a direction far away from the clamping structure. The first brake rod 263 moves towards the direction approaching to the clamping structure, so that the other end of the first brake rod 263 is clamped with the clamping structure, and the headband 22 is locked as shown in fig. 8; the first brake rod 263 moves in a direction away from the fastening structure, so that the other end of the first brake rod 263 is separated from the fastening structure, and the locking of the headband 22 is released, as shown in fig. 9, at this time, the coil spring 21 drives the headband 22 to move, so that the length of the headband 22 from the notch 28 to the other side of the mask body 10 is changed.

In addition, in some embodiments, a limiting hole is arranged on the mounting groove at a position close to one end of the mounting groove, and the limiting hole is communicated with the mounting groove; when the first brake button 261 is located at the first position, the first connecting rod 262 is located in the limiting hole, and the limiting hole limits the first connecting rod 262, so that the first brake rod 263 locks the coil spring plate 25; with the first brake button 261 in the second position, the first connecting rod 262 is positioned in the mounting groove such that the first brake rod 263 unlocks the coiler plate 25.

The position that is close to the one end of mounting groove on the mounting groove is provided with spacing hole, and spacing hole and mounting groove switch on, consequently head rod 262 can slide in mounting groove and spacing hole, and head rod 262 then can not move at the extending direction of mounting groove when head rod 262 is located spacing hole to when user operation first brake button 261 makes head rod 263 and joint structure joint, can avoid head rod 262 to slide in the mounting groove, makes head rod 263 break away from the joint structure. That is, in the embodiment of the present utility model, the setting of the limiting hole may make the clamping of the first brake lever 263 to the coil spring plate 25 more reliable.

When the first brake key 261 is located at the first position, the first connecting rod 262 is located in the limiting hole, and the limiting hole can limit the first connecting rod 262, so that the brake rod locks the coil spring plate 25, and the first brake rod 263 is more reliably clamped to the coil spring plate 25; with the first brake button 261 in the second position, the first connecting rod 262 is positioned in the mounting groove such that the first brake rod 263 unlocks the coiler plate 25.

It should be noted that, a limiting hole may be disposed at a position on the mounting groove near the other end of the mounting groove, and the limiting hole may avoid the first connecting rod 262 sliding along the mounting groove under the action of its own weight, so that the first braking rod 263 moves in a direction near the coil spring plate 25. Alternatively, at the other end of the mounting groove, the dimension between two opposite groove walls of the mounting groove may be smaller than the dimension of the first connecting rod 262, that is, the first connecting rod 262 is in interference fit with the mounting groove at the other end of the mounting groove, and the first connecting rod 262 can be prevented from sliding along the mounting groove under the action of self gravity, so that the problem that the first brake rod 263 moves in the direction approaching the coil spring plate 25 occurs.

In addition, in some embodiments, the braking member 26 includes a second braking button 264, a second connecting rod 265, and an elastic member 266, a mounting hole is provided on the second housing 24, a fixing structure is provided on an inner wall of the second housing 24, the elastic member 266 is located in the accommodating cavity, the second braking button 264 is connected with one end of the second connecting rod 265, the second braking button 264 is located in an outer space of the accommodating cavity, a blocking boss is provided on the second connecting rod 265, the second connecting rod 265 is penetrated through the mounting hole and the elastic member 266, one end of the elastic member 266 abuts against the fixing structure, the other end of the elastic member 266 abuts against the blocking boss, one end of the second braking rod 267 is connected to the blocking boss, the other end of the second braking rod 267 is located in the outer space of the elastic member 266, an elastic protrusion 268 is provided on the second braking button 264, and a groove is also provided on the second housing 24; with the second detent button 264 in the first position, the projection 268 is embedded in the recess, the elastic member 266 is in a compressed state, and the other end of the second detent lever 267 is in abutment with the engagement structure to lock the coil spring plate 25; with the second detent button 264 in the second position, the projection 268 is disengaged from the recess, the elastic member 266 is in the initial state, and the other end of the second detent lever 267 is disengaged from the engagement structure to unlock the coiler 25.

The stopper 26 further includes a second stopper button 264, a second connecting rod 265, an elastic member 266, and a second stopper rod 267, the elastic member 266 is located in the receiving cavity, the second stopper button 264 is connected with one end of the second connecting rod 265, and the second stopper button 264 is located in an outer space of the receiving cavity so that a user operates the second stopper button 264, so that the stopper 26 can lock the coil spring plate 25 or unlock the coil spring plate 25. The second shell 24 is provided with a mounting hole, the inner wall of the second shell 24 is provided with a fixed structure, the second connecting rod 265 is provided with a blocking boss, the second connecting rod 265 is arranged in the mounting hole and the elastic piece 266 in a penetrating mode, one end of the elastic piece 266 is abutted to the fixed structure, the other end of the elastic piece 266 is abutted to the blocking boss, one end of the second braking rod 267 is connected to the blocking boss, the other end of the second braking rod 267 is located in the outer space of the elastic piece 266, the second braking button 264 is provided with an elastic bulge 268, the second shell 24 is further provided with a groove, so that when a user presses the second braking button 264, the elastic piece 266 is compressed, the bulge 268 on the second braking button 264 penetrates the groove, at the moment, the groove blocks the movement of the bulge 268, the elastic piece 266 is in a compressed state, the elastic piece 266 cannot drive the first braking button 261, the other end of the second braking rod 267 is abutted to the clamping structure, and the coil spring disc 25 is locked when the second control button is in the first position; when the user presses the projection 268, the projection 268 deforms to separate the projection 268 from the groove, at this time, the projection 268 moves relative to the groove, the elastic element 266 returns to deform under the action of the elastic force, the elastic element 266 drives the second control button to move upwards, at this time, the elastic element 266 is in an initial state under the condition that the second control button is in the second position, and the other end of the second brake lever 267 is separated from the clamping structure to release the locking of the coil spring disc 25.

In addition, in some embodiments, as shown in fig. 3 and 4, the coil spring 21 may be provided with a clamping bar 211, and one end of the headband 22 may be provided with a through hole 221, and the clamping bar 211 is inserted into the through hole 221, so that the coil spring 21 is connected with one end of the headband 22.

The coil spring 21 is provided with a clamping strip 211, one end of the headband 22 is provided with a through hole 221, and when one end of the headband 22 and the coil spring 21 are connected, the clamping strip 211 can be arranged through the through hole 221 so as to be connected between one end of the headband 22 and the coil spring 21.

In addition, in some embodiments, as shown in fig. 2 and 5, the adjusting device 20 may further include a connection strap 27, one end of the connection strap 27 is connected to the first housing 23, and the other end of the connection strap 27 is connected to the mask body 10.

The adjusting device 20 further includes a connection strap 27, and one end of the connection strap 27 is connected to the first housing 23, so that the adjusting device 20 can be connected to the mask body 10 through the connection strap 27, thereby facilitating the connection of the adjusting device 20 to the mask body 10.

The mask body 10 may be provided with a hook 11, and the connection strap 27 is sleeved on the hook 11 to connect the adjusting device 20 and the mask body 10. Wherein, the hooks 11 may be provided at both ends of the mask body 10, and the user may connect the adjusting device 20 at one end thereof and the other end of the headband 22 at the other end thereof according to his/her own habit.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.

While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.

Claims

1. A mask, characterized in that the mask comprises a mask body and an adjusting device, wherein the adjusting device is connected to one side of the mask body;

2. The mask of claim 1 wherein the adjustment means further comprises a coil spring disc and a brake;

3. The mask of claim 2, wherein the coil spring disc is provided with a snap feature in a circumferential direction of the coil spring disc, and wherein the detent is adapted to snap with the snap feature to block rotation of the coil spring disc.

4. A mask according to claim 3, wherein a plurality of snap teeth are provided on the coiler plate in a circumferential direction of the coiler plate, the plurality of snap teeth forming the snap structure, the detent being for snap engagement with the snap teeth to block rotation of the coiler plate;

5. The mask of claim 4, wherein the brake is provided with a limiting tooth for the engaging tooth to engage, or wherein the brake is provided with a limiting boss for being inserted into the engaging groove.

6. The mask of claim 4, wherein the detent comprises a first detent button, a first connecting rod, and a first detent lever, the first detent button being connected to the first connecting rod, the first connecting rod being connected to one end of the first detent lever;

7. The mask of claim 6, wherein a limiting hole is formed in the mounting groove at a position close to one end of the mounting groove, and the limiting hole is communicated with the mounting groove;

8. The mask according to claim 4, wherein the braking member includes a second braking button, a second connecting rod, an elastic member and a second braking lever, a mounting hole is provided on the second housing, a fixing structure is provided on an inner wall of the second housing, the elastic member is located in the accommodating cavity, the second braking button is connected with one end of the second connecting rod, the second braking button is located in an outer space of the accommodating cavity, a blocking boss is provided on the second connecting rod, the second connecting rod is inserted into the mounting hole and the elastic member, one end of the elastic member is abutted with the fixing structure, the other end of the elastic member is abutted with the blocking boss, one end of the second braking lever is connected with the blocking boss, the other end of the second braking lever is located in an outer space of the elastic member, an elastic protrusion is provided on the second braking button, and a groove is further provided on the second housing;

9. The mask of claim 1, wherein the coil spring is provided with a snap-in strip, one end of the headband is provided with a through hole, and the snap-in strip is threaded through the through hole to connect the coil spring with one end of the headband.

10. The mask of claim 1, wherein the adjustment device further comprises a connecting strap having one end connected to the first housing and the other end connected to the mask body.